Studies on Plant Growth Substances |
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| Authors: | Koichi Koshimizu Toshio Fujita Tetsuo Mitsui Jiro Kato |
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| Institution: | Department of Agricultural Chemistry, Kyoto University, Kyoto |
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| Abstract: | 1-Naphthoic acid derivatives substituted with chlorine, bromine, methyl or nitro groups at various positions of the ring were assayed for their activities in the pea straight-growth and the callus formation tests. Their growth activities are discussed from two points of view, i.e. the spatial structure hypothesis of Veldstra and the ortho reaction hypothesis advanced for benzoic acid derivatives proposed by Hansch and Muir. It appears that a combination of these two views are appropriate for the present authors’ results. |
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